Full Idea
It seems that when a proposition is false, something does not subsist which would subsist if the proposition were true.
Gist of Idea
It seems that when a proposition is false, something must fail to subsist
Source
Bertrand Russell (Meinong on Complexes and Assumptions [1904], p.76)
Book Reference
Russell,Bertrand: 'Essays in Analysis', ed/tr. Lackey,Douglas [George Braziller 1973], p.76
A Reaction
This looks to me like a commitment by Russell to the truthmaker principle. The negations of false propositions are made true by some failure of existence in the world.
Related Idea
Idea 21543 If p is false, then believing not-p is knowing a truth, so negative propositions must exist [Russell]